MPG with fuel injection

Hey im looking into buying a 1st gen k5 that has been converted to fuel injection or has a swapped in fuel injected motor. I ideally want 6+in of lift and 37-38in tires, 14 bolt, d60 front. Was seeing what everyone with good fuel injection was getting for gas milage. Also curious about TBI milage also. I have a 98 silverado with 5.7 vortec and only get about 15. Thanks.

I didn't see that much improvement in mileage with TBI. You will see better throttle response, smoother running, easy cold starts. The best improvement is no more carb stalling off camber. That alone was worth the swap.

what about you guys with the aftermarket fuel injection systems? Accel super ram, edelbrock FI, or holley? Anyone know if anyone runs these or possibley LS1's or vortecs? Im not a big fan of the TBI system.

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